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Old 28-08-2008, 10:55 AM
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sheeny (Al)
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Join Date: Jun 2005
Location: Oberon NSW
Posts: 14,437
Never done it myself but I've seen it done on bottles and other glass objects...

Use a copper pipe the diameter of the hole you want and valve grinding paste and grind by hand. It's a very gentle process - not sure how long it would take you to do a mirror.

Al.
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